People are having problems with this style because it does not have the no_avatar.gif in the alternate color versions.

Since no_avatar.gif is NOT handled by CSS, it can't be inherited, so it must be included in all other color versions of this style so it is available to phpBB and to extensions that expect it to be there.

I'd recommend the author of this style check for all images not handled by CSS and make sure they are copied to all other theme variations, since there are likely more that are missing.

I don't know if it's my board or this theme, but I created a new user who is in the registered users group and the forums don't show an arrow indicating the forums haven't been read for the user. I have the read forums option not set as a cookie, but rather a database entry in the ACP if that means anything.